13. Baeyer-Villiger monooxygenases (BVMOs) are flavin-dependent enzymes that catalyse oxidations. Which one of the following oxidation is NOT carried out by BVMOs? (a) Aldehydes to carboxylic acids, (b) Ketones and […]
Tag: dbt jrf pyq
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DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding the Role of Thiamine Pyrophosphate in Pyruvate Decarboxylation
12. Pyruvate decarboxylase catalyses the decarboxylation of pyruvic acid to acetaldehyde and carbon dioxide. Its action depends on cofactors thiamine pyrophosphate (TPP) and magnesium. In this process, the role of […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Nucleic Acid Modifications: DNA, tRNA, and mRNA
10. In the following table, List I has different nucleic acids and List II has certain base modifications. Match the components from the List I with those in the List […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
What Is Opsonization? How Antibodies Tag Pathogens for Destruction
Opsonization is the process of 1. coating of foreign substances by antibody 2. coating of foreign substances by MHC 3. coating of foreign substances by TCR 4. none of the […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding the Behavior of Protein X in Gel Filtration and SDS-PAGE: Insights into Protein Structure
9. You have isolated a hypothetical protein X. When X is run on a gel filtration column, the apparent size of the protein is 80 kDa. When X is run […]
DBT BET JRF 2021 Previous Year Questions and Video solution
How to Mimic Protein Phosphorylation by Mutating Threonine Residue: Exploring the Best Substitution
8. A protein X is active when phosphorylated on Thr residue. You wish to mimic this phosphorylation by mutating Thr to another residue. Which one of these residues will you […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Why Taq DNA Polymerase Is Least Affected by Room Temperature: A Thermostable Enzyme Spotlight
While working in the lab, you forgot to keep enzymes back in the fridge. Which of the following enzyme will be least affected on being left outside at room temperature? […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Induced Pluripotent Stem Cells: How Transcription Factors Induce Pluripotency in Somatic Cells
7. In induced pluripotent stem cells: (a) Germ cells are transformed and passaged continuously in culture to maintain a state conducive to future pluripotent cell formation, (b) Oncogenes are added […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
How Many Peptide Fragments Are Produced When Trypsin Digests a Polypeptide?
How many peptide fragments can be generated from the complete digestion of the polypeptide AGRCDKCQANRSLMNF with trypsin? 1.6 2.4 3.3 4.2 Trypsin Digestion: How It Works Trypsin is a proteolytic […]
DBT BET JRF 2021 Previous Year Questions and Video solution
How NH4+ Affects Lysosomal Tracking in Cells: Understanding Protein Degradation and Fluorescence Emission
6. A protein cargo X is destined for lysosomal degradation in cells under specific conditions. This can be tracked by red fluorescence emitted by the tag when it reaches lysosomes. […]
